<!DOCTYPE html>
<html>
<head>
<script
src = "http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js">
</script>
<script>
$(document).ready(function(){
	$("input").focus(function(){
		$(this).css("background-color","#cccccc");
	});
	$("input").blur(function(){
		$(this).css("background-color","#000000");
		
	});
});
</script>
</head>
<body>
Name : <input type = "text" name ="fullname"><br/>
Email : <input type = "text" name = "email">
</body>
</html>